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Key differences between Java and JavaScript: Java is an OOP programming language while Java Script is an OOP scripting language. Java creates applications that run in a virtual machine or browser while JavaScript code is run on a browser only. Java code needs to be compiled while JavaScript code are all in text.
Where as coffee scripts is a language by which you create and may design your own program. It can be used by you . Java is a OOPL by which you create and are able to design your own program. It this is a platform independent language.
JAVA
Java is an object oriented programming language.
Java applications can run in any virtual machine(JVM) or browser.
Objects of Java are class based even we can’t make any program in java without creating a class.
Java program uses more memory.
Java has a thread based approach to concurrency.
JAVASCRIPT
JavaScript is an object based scripting language.
JavaScript code run on browser only as JavaScript is developed for browser only.
JavaScript Objects are prototype based.
JavaScript requires less memory therefore it is used in web pages.
Javascript has event based approach to concurrency.
Java code must be compiled, and JavaScript code is all-text. ... JavaScript code is run on a browser only, while Java creates applications that run in a virtual machine or browser. Java is an OOP (object-oriented programming) language, and JavaScript is specifically an OOP scripting language.